Preheat oven to 350°.
Brew apple tea in boiling water and set aside.
Grease a 12-donut donut pan and set aside.
In a medium bowl, whisk together the coconut flour, baking powder, cinnamon, nutmeg, and salt. Set aside.
In the bowl of a stand mixer, combine sweetener, oil, apple tea, eggs, and vanilla. Mix to combine. Then add the flour mixture and combine once again.
Pour into prepared donut pans and bake for 15-20 minutes or until a toothpick comes out of the cake clean.
While it bakes, prepare the glaze. In a medium-sized bowl, place the 1/2 cup brewed tea, 1/2 cup coconut oil (it will melt in the hot tea), and Natural Sweetener and mix well. Set aside to cool a bit before spreading over donuts.
Cool the donuts in the pan for 10 minutes, then place onto your serving platter. Top with glaze.